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li:before{align-items:center;background:var(--codju-brand-100);border-radius:50%;color:var(--codju-brand-700);content:counter(list-item);display:flex;font-weight:800;height:7cqw;justify-content:center;left:3cqw;position:absolute;top:2.4cqw;width:7cqw}.feature-list b{color:var(--codju-ink);font-size:3.8cqw}.feature-list small{color:var(--codju-ink-muted);font-size:3cqw;font-weight:700}.fun-fact{background:#fff7dc;border:.5cqw solid #f2d99c;border-radius:999px;color:#8a5700;font-size:3.4cqw;font-weight:800;justify-self:center;padding:1.8cqw 3cqw}.python-use-list{align-content:center}.python-use-list>div{align-items:center;background:#fff;border:.5cqw solid var(--codju-line);border-radius:3.2cqw;display:flex;gap:3cqw;min-height:10cqw;padding:2cqw 3cqw}.python-use-list span{align-items:center;background:var(--codju-brand-100);border-radius:2.4cqw;color:var(--codju-brand-700);display:flex;flex:0 0 7cqw;font-size:4cqw;height:7cqw;justify-content:center}.python-use-list b{color:var(--codju-ink);font-size:3.7cqw}.recap-list{align-content:center}.recap-list>div{align-items:center;background:#fff;border:.5cqw solid var(--codju-line);border-radius:3.4cqw;display:flex;gap:3cqw;padding:3cqw}.recap-list span{align-items:center;background:var(--codju-brand-100);border-radius:50%;color:var(--codju-brand-700);display:flex;flex:0 0 9cqw;font-weight:800;height:9cqw;justify-content:center}.recap-list b{font-size:3.7cqw}.recap-list p{background:var(--codju-brand-500);border-radius:999px;color:#fff;font-size:3.6cqw;font-weight:800;justify-self:center;margin:1cqw 0 0;padding:2cqw 4cqw}.start-overlay{align-content:center;display:grid;gap:0;inset:0;justify-items:center;padding:var(--codju-space-6);position:absolute;text-align:center;z-index:5}.start-overlay:before{background:linear-gradient(180deg,#fcfaff00,#fcfaff8c 38%,#fcfafff5 70%);content:"";inset:0 auto 0 50%;pointer-events:none;position:absolute;transform:translate(-50%);width:100vw;z-index:-1}.start-overlay h2{font:800 2.2rem/1.05 var(--codju-font-display);margin:0}.start-overlay p{color:var(--codju-ink-secondary);font-weight:700;line-height:1.45;margin:0}.start-overlay .big-play{margin-bottom:var(--codju-space-6)}.start-overlay small{color:var(--codju-ink-muted);font-weight:800;margin-top:var(--codju-space-3)}.big-play{align-items:center;background:var(--codju-brand-500);border:0;border-radius:50%;box-shadow:0 .9rem 2rem -.6rem #621b9d99;color:#fff;display:flex;height:5rem;justify-content:center;padding:0 0 0 .25rem;position:relative;width:5rem}.big-play:after{animation:play-attention var(--codju-motion-ambient) ease-out infinite;border:.3rem solid rgba(134,35,213,.24);border-radius:inherit;content:"";inset:-.65rem;pointer-events:none;position:absolute}.big-play span{font-size:1.55rem}.big-play b{font-size:.9rem}.choice-stack{display:grid;gap:var(--codju-space-2)}.choice-stack button{background:#fff;border:2px solid var(--codju-line);border-radius:var(--codju-radius-md);color:var(--codju-ink);font-weight:800;line-height:1.3;padding:var(--codju-space-3);text-align:left}.choice-stack button[data-selected=true]{background:var(--codju-brand-50);border-color:var(--codju-brand-400)}.category-sort{display:grid;gap:3cqw}.sort-hint{color:var(--codju-ink-muted);font-size:3.2cqw;font-weight:700;margin:0}.sort-bank{align-content:flex-start;background:var(--codju-brand-50);border:.4cqw dashed var(--codju-brand-300);border-radius:3.6cqw;display:flex;flex-wrap:wrap;gap:2cqw;min-height:14cqw;padding:2.6cqw;transition:background var(--codju-motion-fast) var(--codju-ease-standard),border-color var(--codju-motion-fast) var(--codju-ease-standard),box-shadow var(--codju-motion-fast) var(--codju-ease-standard)}.sort-buckets{display:grid;gap:2.4cqw;grid-template-columns:repeat(2,minmax(0,1fr))}.sort-bucket{background:#fff;border:.5cqw solid 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var(--codju-ease-standard),opacity var(--codju-motion-fast) var(--codju-ease-standard),transform var(--codju-motion-fast) var(--codju-ease-standard);-webkit-user-select:none;user-select:none}.sort-chip[aria-pressed=true]{border-color:var(--codju-brand-500);box-shadow:0 0 0 1cqw #8623d52e}.sort-chip--dragging{cursor:grabbing;opacity:.35;transform:scale(1.02) rotate(-1deg)}.category-sort--dragging [data-drag-over=true]{background:var(--codju-brand-100);border-color:var(--codju-brand-500);box-shadow:0 0 0 1cqw #8623d51f}.sort-chip[data-state=correct]{background:var(--codju-success-soft);border-color:var(--codju-success);box-shadow:none}.sort-chip[data-state=incorrect]{background:var(--codju-warning-soft);border-color:var(--codju-warning);box-shadow:none}.category-sort--picking .sort-bucket,.category-sort--picking .sort-bank{outline:.5cqw dashed 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var(--codju-line);color:var(--codju-brand-700)}button:disabled{cursor:not-allowed;opacity:.48}.radio-stack{border:0;display:grid;gap:var(--codju-space-2);margin:0;padding:0}.radio-stack legend{color:var(--codju-ink-secondary);font-size:.85rem;font-weight:800;margin-bottom:var(--codju-space-2)}.radio-stack label{align-items:center;background:var(--codju-surface);border:2px solid var(--codju-line);border-radius:var(--codju-radius-md);display:flex;gap:var(--codju-space-3);min-height:var(--codju-touch-target);padding:var(--codju-space-3)}.radio-stack label:has(input:checked){background:var(--codju-brand-50);border-color:var(--codju-brand-400)}.radio-stack input{height:1.2rem;width:1.2rem}.feedback{animation:feedback-enter .28s var(--codju-ease-standard) both;border-radius:var(--codju-radius-md);padding:var(--codju-space-4)}.feedback strong{display:block;font-family:var(--codju-font-display)}.feedback-body{line-height:1.45;margin-top:var(--codju-space-1)}.feedback--correct{background:var(--codju-success-soft);color:var(--codju-success)}.feedback--retry{background:var(--codju-warning-soft);color:var(--codju-warning)}.activity-actions{display:flex;justify-content:flex-end}.activity-actions .primary-action{min-width:7rem;width:auto}.feedback-actions{display:flex;flex-wrap:wrap;gap:var(--codju-space-2);justify-content:flex-end;margin-top:var(--codju-space-4)}.feedback-actions button{min-width:8rem}.code-order{display:grid;gap:var(--codju-space-2);list-style:none;margin:0;padding:0}.code-order li{align-items:center;background:#171022;border-radius:var(--codju-radius-md);color:#fff;display:flex;gap:var(--codju-space-2);justify-content:space-between;min-height:3.5rem;padding:var(--codju-space-2) var(--codju-space-3)}.code-order code{font-family:var(--codju-font-mono);font-size:.78rem;overflow-x:auto}.code-order li span{display:flex;gap:var(--codju-space-1)}.code-order button{background:#342542;border:1px solid #725b8c;border-radius:var(--codju-radius-sm);color:#fff;min-width:var(--codju-touch-target)}.editor-panel{display:grid;gap:var(--codju-space-2)}.editor-panel label{color:var(--codju-ink-secondary);font-size:.8rem;font-weight:800}.editor-panel textarea{background:#171022;color:#f8f4ff;font-family:var(--codju-font-mono);line-height:1.55;min-height:12rem;resize:vertical;tab-size:4}.lab-actions{display:flex;gap:var(--codju-space-2);justify-content:flex-end;position:sticky;bottom:0;z-index:2}.test-results{background:var(--codju-surface);border:1px solid var(--codju-line);border-radius:var(--codju-radius-md);padding:var(--codju-space-3)}.test-results h3{font-family:var(--codju-font-display);margin:0 0 var(--codju-space-2)}.test-results ul{display:grid;gap:var(--codju-space-2);list-style:none;margin:0;padding:0}.test-results li{align-items:flex-start;color:var(--codju-warning);display:flex;gap:var(--codju-space-2)}.test-results li[data-passed=true]{color:var(--codju-success)}.story-controls{align-items:center;border-top:1px solid var(--codju-line);display:grid;grid-template-columns:repeat(5,1fr);justify-items:center;padding:var(--codju-space-3) var(--codju-space-4) max(var(--codju-space-3),env(safe-area-inset-bottom))}.story-control-group{display:contents}.story-control-group>span{display:none}.story-controls button{align-items:center;background:transparent;border:0;border-radius:50%;color:var(--codju-ink-secondary);display:flex;font-size:1.8rem;height:2.75rem;justify-content:center;min-height:2.75rem;padding:0;width:2.75rem}.story-controls svg{fill:none;height:1.45rem;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2;width:1.45rem}.story-controls button:hover:not(:disabled){background:var(--codju-brand-50);color:var(--codju-brand-700)}.story-controls .story-control--play{background:var(--codju-brand-500);box-shadow:0 .6rem 1.35rem -.5rem #621b9d99;color:#fff;font-size:1.15rem;height:3.65rem;width:3.65rem}.story-controls .story-control--play svg{fill:currentColor;stroke:none}.story-controls .story-control--play:hover:not(:disabled){background:var(--codju-brand-600);color:#fff}.story-controls--covered button,.story-controls--covered .story-control--play{background:transparent;box-shadow:none;color:var(--codju-brand-200);opacity:.32}.completion-overlay{align-content:center;animation:overlay-enter var(--codju-motion-reveal) var(--codju-ease-standard) both;background:#fcfafffa;display:grid;gap:var(--codju-space-3);inset:0;justify-items:center;padding:var(--codju-space-8);position:absolute;text-align:center;z-index:10}.completion-overlay h2{font:800 2.2rem/1.05 var(--codju-font-display);margin:0}.completion-overlay p{color:var(--codju-ink-secondary);line-height:1.5;margin:0}.completion-trophy{align-items:center;animation:trophy-pop var(--codju-motion-expressive) var(--codju-ease-spring) both;background:#fff2b8;border-radius:50%;color:#8a6300;display:flex;font-size:2.6rem;height:6rem;justify-content:center;width:6rem}.completion-actions{display:flex;flex-wrap:wrap;gap:var(--codju-space-2);justify-content:center}.practice-overlay{animation:overlay-enter var(--codju-motion-reveal) var(--codju-ease-standard) both;background:var(--codju-surface-raised);display:flex;flex-direction:column;gap:4cqw;inset:0;overflow:auto;padding:5cqw 6cqw 6cqw;position:absolute;z-index:12}.practice-head{align-items:center;display:flex;justify-content:space-between}.practice-head>button{background:transparent;border:0;border-radius:50%;color:var(--codju-ink-muted);font-size:1.5rem;min-height:9cqw;width:9cqw}.practice-dots{display:flex;gap:1.6cqw}.practice-dots i{background:var(--codju-line);border-radius:50%;height:2.4cqw;width:2.4cqw}.practice-dots i[data-done=true]{background:var(--codju-success)}.practice-task{display:grid;gap:5.5cqw;margin-block:auto;width:100%}.practice-prompt{display:grid;gap:2.5cqw;text-align:center}.practice-prompt .eyebrow{margin:0}.practice-prompt h2{color:var(--codju-ink);font:800 clamp(1.45rem,5.1cqw,1.8rem)/1.18 var(--codju-font-display);margin:0;text-wrap:balance}.practice-options{display:grid;gap:2.6cqw}.practice-options button{background:#fff;border:.5cqw solid var(--codju-line);border-radius:3.6cqw;color:var(--codju-ink);font-size:4.2cqw;font-weight:800;min-height:12cqw;padding:3cqw 4cqw;text-align:left}.practice-options button[data-selected=true]{background:var(--codju-brand-50);border-color:var(--codju-brand-500)}.practice-order{display:grid;gap:2cqw;list-style:none;margin:0;padding:0}.practice-order-wrap{display:grid;gap:2.5cqw}.practice-order-hint{color:var(--codju-ink-muted);font-size:3.2cqw;font-weight:700;margin:0;text-align:center}.practice-order li{align-items:center;background:#fff;border:.5cqw solid var(--codju-line);border-radius:3cqw;display:flex;font-size:3.5cqw;font-weight:800;gap:2.5cqw;padding:2cqw 2.5cqw;transition:border-color var(--codju-motion-fast) var(--codju-ease-standard),box-shadow var(--codju-motion-fast) var(--codju-ease-standard),transform var(--codju-motion-fast) var(--codju-ease-standard)}.practice-order[data-drag-active=true] li{transition-duration:var(--codju-motion-normal)}.practice-order li[data-dragging=true]{background:var(--codju-brand-50);border-color:var(--codju-brand-300);border-style:dashed;box-shadow:inset 0 0 0 2px #8623d514;opacity:.48}.practice-order-handle{align-items:center;background:var(--codju-brand-50);border:0;border-radius:2cqw;color:var(--codju-brand-700);cursor:grab;display:flex;flex:0 0 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header{align-items:center;background:#2b2037;display:flex;justify-content:space-between;padding:2cqw 3cqw}.practice-editor header strong{font:700 3.2cqw var(--codju-font-mono)}.practice-editor header button{background:#443254;border:0;border-radius:999px;color:#fff;min-height:7cqw;padding:1cqw 3cqw}.practice-editor textarea{background:#171022;border:0;color:#f8f4ff;font:700 4cqw/1.55 var(--codju-font-mono);min-height:27cqw;outline:none;padding:3cqw;resize:vertical;width:100%}.code-keys{background:#251b30;display:flex;gap:1.5cqw;overflow-x:auto;padding:2cqw}.code-keys button{background:#3d2f4a;border:0;border-radius:1.8cqw;color:#f8f4ff;flex:none;font:700 3cqw var(--codju-font-mono);min-height:7cqw;padding:1cqw 2.5cqw}.practice-actions{display:flex;justify-content:flex-end}.practice-actions .primary-action{min-width:7rem;width:auto}.practice-task 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#1d15302e;display:block;height:100%;max-width:25rem;overflow:auto;padding:var(--codju-space-6);position:absolute;right:0;top:0;width:min(92vw,25rem)}.context-drawer>header{align-items:flex-start;display:flex;justify-content:space-between}.context-drawer>header>button{background:var(--codju-brand-50);border:0;border-radius:50%;color:var(--codju-brand-800);font-size:1.5rem;width:var(--codju-touch-target)}.context-drawer h2{font-family:var(--codju-font-display);line-height:1.12;margin:0}.context-drawer>p{color:var(--codju-ink-secondary);line-height:1.5}.context-drawer ol{display:grid;gap:var(--codju-space-2);list-style:none;margin:var(--codju-space-4) 0 0;padding:0}.context-drawer li button{align-items:center;background:transparent;border:0;border-radius:var(--codju-radius-md);color:var(--codju-ink-secondary);display:flex;gap:var(--codju-space-2);padding:var(--codju-space-2);text-align:left;width:100%}.context-drawer li button 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